[ ...well, shoot. If it wasn't for some of that vagueness, he might have gotten confirmation on a few things. That admission weighs heavily on him, as a boy who HAS to take people at their word until proven otherwise, due to his own issues. It's not that he wants to be skeptical, or even overly sympathetic.
This is all a balancing act; treating someone like they are not a stranger until proven otherwise. ] There's a lot about this place that can't be explained, either. That's why it's good that I'm cautious and it's good that you sound like your guard is up.